package com.ruoyi.web.controller.common;

import java.util.ArrayList;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.ruoyi.common.utils.DateUtils;
import com.ruoyi.common.utils.OssUtils;
import com.ruoyi.common.utils.tt.FileCopyUtils;
import com.ruoyi.web.controller.tool.UniversalExtractor;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
import com.ruoyi.common.config.RuoYiConfig;
import com.ruoyi.common.constant.Constants;
import com.ruoyi.common.core.domain.AjaxResult;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.common.utils.file.FileUploadUtils;
import com.ruoyi.common.utils.file.FileUtils;
import com.ruoyi.framework.config.ServerConfig;

/**
 * 通用请求处理
 *
 * @author ruoyi
 */
@RestController
@RequestMapping("/common")
public class CommonController
{
    private static final Logger log = LoggerFactory.getLogger(CommonController.class);

    @Autowired
    private ServerConfig serverConfig;

    private static final String FILE_DELIMETER = ",";

    /**
     * 通用下载请求
     *
     * @param fileName 文件名称
     * @param delete 是否删除
     */
    @GetMapping("/download")
    public void fileDownload(String fileName, Boolean delete, HttpServletResponse response, HttpServletRequest request)
    {
        try
        {
            if (!FileUtils.checkAllowDownload(fileName))
            {
                throw new Exception(StringUtils.format("文件名称({})非法，不允许下载。 ", fileName));
            }
            String realFileName = System.currentTimeMillis() + fileName.substring(fileName.indexOf("_") + 1);
            String filePath = RuoYiConfig.getDownloadPath() + fileName;

            response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
            FileUtils.setAttachmentResponseHeader(response, realFileName);
            FileUtils.writeBytes(filePath, response.getOutputStream());
            if (delete)
            {
                FileUtils.deleteFile(filePath);
            }
        }
        catch (Exception e)
        {
            log.error("下载文件失败", e);
        }
    }

    /**
     * 通用上传请求（单个）
     */
    @PostMapping("/upload")
    public AjaxResult uploadFile(MultipartFile file) throws Exception
    {
        try
        {
            String time = DateUtils.dateTime();
            String url = OssUtils.upload(file, "file/"+time);
            // 上传并返回新文件名称
            String newFileName = FileUtils.getName(url);
            String fileName = "/file/"+time+"/"+newFileName;
            AjaxResult ajax = AjaxResult.success();
            ajax.put("url", url);
            ajax.put("fileName", fileName);
            ajax.put("newFileName", newFileName);
            ajax.put("originalFilename", file.getOriginalFilename());
            return ajax;
        }
        catch (Exception e)
        {
            return AjaxResult.error(e.getMessage());
        }
    }
    /**
     * 通用上传请求（单个）
     */
    @PostMapping("/uploadToOss")
    public AjaxResult uploadToOss(MultipartFile file) throws Exception
    {
        try
        {
            String time = DateUtils.dateTime();
            String url = OssUtils.upload(file, "images/"+time);
            // 上传并返回新文件名称
            String newFileName = FileUtils.getName(url);
            String fileName = "/images/"+time+"/"+newFileName;
            AjaxResult ajax = AjaxResult.success();
            ajax.put("url", url);
            ajax.put("fileName", fileName);
            ajax.put("newFileName", newFileName);
            ajax.put("originalFilename", file.getOriginalFilename());
            return ajax;
        }
        catch (Exception e)
        {
            return AjaxResult.error(e.getMessage());
        }
    }
    @PostMapping("/uploadVideoToOss")
    public AjaxResult uploadVideoToOss(MultipartFile file) throws Exception
    {
        try
        {
            String time = DateUtils.dateTime();
            String url = OssUtils.upload(file, "video/"+time);
            // 上传并返回新文件名称
            String newFileName = FileUtils.getName(url);
            String fileName = "/images/"+time+"/"+newFileName;
            AjaxResult ajax = AjaxResult.success();
            ajax.put("url", url);
            ajax.put("fileName", fileName);
            ajax.put("newFileName", newFileName);
            ajax.put("originalFilename", file.getOriginalFilename());
            return ajax;
        }
        catch (Exception e)
        {
            return AjaxResult.error(e.getMessage());
        }
    }
    /**
     * 删除OSS文件
     * @param fileName 文件路径（可以是相对路径或完整URL）
     */
    @DeleteMapping("/deleteFromOss")
    public AjaxResult deleteFromOss(@RequestParam String fileName) {
        try {
            // 调用OssUtils删除文件
            OssUtils.delete(fileName);
            return AjaxResult.success("删除成功");
        } catch (Exception e) {
            return AjaxResult.error("删除失败: " + e.getMessage());
        }
    }

    /**
     * 通用上传请求（多个）
     */
    @PostMapping("/uploads")
    public AjaxResult uploadFiles(List<MultipartFile> files) throws Exception
    {
        try
        {
            List<String> urls = new ArrayList<String>();
            List<String> fileNames = new ArrayList<String>();
            List<String> newFileNames = new ArrayList<String>();
            List<String> originalFilenames = new ArrayList<String>();

            // 使用统一的时间戳目录，确保同一批文件在同一个目录下
            String time = DateUtils.dateTime();

            for (MultipartFile file : files)
            {
                // 使用OssUtils上传到对象存储，与单文件上传逻辑保持一致
                String url = OssUtils.upload(file, "file/" + time);

                // 获取新文件名称和构建文件路径信息
                String newFileName = FileUtils.getName(url);
                String fileName = "/file/" + time + "/" + newFileName;

                urls.add(url);
                fileNames.add(fileName);
                newFileNames.add(newFileName);
                originalFilenames.add(file.getOriginalFilename());
            }

            AjaxResult ajax = AjaxResult.success();
            ajax.put("urls", urls); // 考虑直接返回List，前端处理更方便
            ajax.put("fileNames", fileNames);
            ajax.put("newFileNames", newFileNames);
            ajax.put("originalFilenames", originalFilenames);

            // 如果需要保持与原来相同的字符串拼接格式，可以使用：
            // ajax.put("urls", StringUtils.join(urls, FILE_DELIMETER));
            // ajax.put("fileNames", StringUtils.join(fileNames, FILE_DELIMETER));
            // ajax.put("newFileNames", StringUtils.join(newFileNames, FILE_DELIMETER));
            // ajax.put("originalFilenames", StringUtils.join(originalFilenames, FILE_DELIMETER));

            return ajax;
        }
        catch (Exception e)
        {
            return AjaxResult.error(e.getMessage());
        }
    }

    /**
     * 本地资源通用下载
     */
    @GetMapping("/download/resource")
    public void resourceDownload(String resource, HttpServletRequest request, HttpServletResponse response)
            throws Exception
    {
        try
        {
            if (!FileUtils.checkAllowDownload(resource))
            {
                throw new Exception(StringUtils.format("资源文件({})非法，不允许下载。 ", resource));
            }
            // 本地资源路径
            String localPath = RuoYiConfig.getProfile();
            // 数据库资源地址
            String downloadPath = localPath + StringUtils.substringAfter(resource, Constants.RESOURCE_PREFIX);
            // 下载名称
            String downloadName = StringUtils.substringAfterLast(downloadPath, "/");
            response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
            FileUtils.setAttachmentResponseHeader(response, downloadName);
            FileUtils.writeBytes(downloadPath, response.getOutputStream());
        }
        catch (Exception e)
        {
            log.error("下载文件失败", e);
        }
    }
    /**
     * 文件上传 此上传主要是上传生成代码的压缩包，
     *  解压压缩包,需要把文件复制到对应的目录
     */
    @PostMapping("/uploadCompress")
    public AjaxResult uploadFile(MultipartFile[] file) throws Exception {
        try {
            // 上传文件路径
            String filePath = RuoYiConfig.getUploadPath();

            // 上传并返回新文件名称
            String fileName = FileUploadUtils.upload(filePath, file[0]);

            // 返回文件访问路径（根据实际需求调整）
            // 或者拼接完整路径
            String url = fileName;
            // 解压文件
            // fileName 去除/profile字符串
            fileName = fileName.replace("/profile", "");
            String filePathWithName = RuoYiConfig.getProfile() + fileName;
            //System.out.println("filePathWithName: " + filePathWithName);
            // 解压文件到指定目录
            String extractFilePath = UniversalExtractor.extract(filePathWithName, null);
            //获取项目路径
            String userDir = System.getProperty("user.dir");
            FileCopyUtils.copyProjectFiles(extractFilePath, userDir);
            //System.out.println("userDir: " + userDir);
            return AjaxResult.success("上传成功", url);
        } catch (Exception e) {
            return AjaxResult.error(e.getMessage());
        }
    }

}
